Note 1281 — PERSIUS.
Lewis Evans translation
Abaco. The frame with movable counters or balls for the purpose of calculation. Pulvere is the sand-board used in the schools of the geometers for drawing diagrams.
Lewis Evans translation
Abaco. The frame with movable counters or balls for the purpose of calculation. Pulvere is the sand-board used in the schools of the geometers for drawing diagrams.